Solar Cycle - Jupiter, Saturn Rotation?
Posted 01/01/07
I don't really have much more than the raw data to contribute to the possibility of this connection along with my own speculation
based on admittedly inadequate knowledge, but as the web has become the repository for almost everything why not this. So
below is an interesting relationship I have investigated between the solar cycle and the rotation of the outer planets Saturn and
Jupiter.
The irregular peaks, on the chart above, are of course the rise and fall of the sun spot numbers, the vertical lines are the
opposition and conjunctions of Saturn and Jupiter. The number above is the difference in years between the cycle top and the
opposition or conjunction. Note that the soar cycle runs from 70 to 90 years in phase with the Jupiter-Saturn cycle and then
goes out of phase for two long cycles and then falls back into phase.
Below is a histogram of the data. Between 1705 and 1989 there are 27 sun spot peaks. Over the same time there are 30 Jup-Sat
oppositions and conjunctions. The sun spot cycle is 10.51 years and the Jup-Sat cycle is 9.63 years. The solar cycle is often
described as a 21 year cycle composed of two half cycles. The full Jupiter/Saturn cycle, from conjunction to conjunction, is
also two 10 year half cycles.
X
X
X
X
X
X X X
X X X
X X X
X X X
X X X X X X X X X X X
Years -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
65.5% of all points are concentrated in only 23% of the possible slots, the odds of this happening by random chance are very
low.
The Jupiter/Saturn cycle is of course fixed and constant if the solar cycle was also fixed the two cycles would run in and out of
phase over the 300 years of data and would produce the histogram displayed below.
X X X X X
X X X X X X X X X X X
X X X X X X X X X X X X X
Years -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
Note: I created this
chart in 1993
before the most
recent cycle top.
The 2001 top is -1.
The possibility that the solar cycle is at least somewhat controlled by the magnets (planets) rotating around it was given a boost
recently by the discovery of a star with a large planet appearing to effect the spot cycle on it's star. In fact the magnetic cycle
might be just a solar near surface phenomena and not internally generated.